After years of touring the world with her mother, a renown thief, Tory Manner returns to London in order to live with her father, a police Commissioner. Along with reformed pickpocket Hayley Morgan and Raymond Jian, a young Chinese expiate, Tory becomes a detective affiliated with the official London police force. With a combination of Tory’s intelligence, Hayley’s skills and Raymond’s martial arts abilities, they solve case after case, sometimes using rather unorthodox methods. Their success and their youth earns scorn from many of the established detectives but within two years, they are considered the best crime solvers on the force. When a rash of assassinations break out, they are immediately put on the case. But as they continue their investigations, what first appears to be straightforward murder soon turns out to be a widening plot that could seriously threaten the international balance of power.
Following the resolution of the Phantom case, Tory Manner and her fellow Inspectors Hayley Morgan and Raymond Jian have become famous. The added attention becomes all the more dangerous when Tory’s mother Diana returns to London and will be staying at home in order to recover from injuries sustained during her latest job. This is problem because Diana is a renown thief and Tory’s father Arthur is one of the Police Commissioners. To make sure that no unwanted attention is drawn to their strange family, Tory gets them assigned to go Istanbul to investigate a missing member of the British ambassador’s staff. A series of murders aboard the ship keep her, Hayley and Raymond occupied. Once they get to Istanbul, they find that the ambassador’s case is anything but routine and may even have a connection to the mysterious events during their boat ride to the Ottoman Empire. They are determined to stop the plot they uncover but it may drag them right into the hands of a group of people out to kidnap them to gain control over Diana.
Diana is missing and presumably at the mercy of the members of a deluded secret society that believes in the mystical power of six ancient tablets of stone. Tory decides to bring Colin Wright, their friend and the Chief of the London Police, into their confidence. He discovers Diana went to Shanghai. Tory, Hayley and Raymond swiftly leave London to try and save her from the mess she has blundered into. In Shanghai, they stay with Raymond’s cousin Kendall and get in contact with their old friend Huxong. Once he pledges his help, Tory starts to plot and to plan. But Tory will need every bit of her intelligence to hoodwink the group that has Diana under their thumb as well as their sworn enemies. Even that may not be enough for in a system with so many variables, so many people acting independently, things are bound to go wrong.